Rough-rounding and channeling machine



(No Model.) 2 Shecs-Sheet 2.

A. E. SMITH.

ROUGH ROUNDING AND GHANNELING MAGHINE.

No. 590,597. Patented Sept. 28,1897.

WITNESSES UNITED ST TES PATENT ()FFlCEc;

ALBERT E. SMITH, OF YVOROESTER, MASSACHUSETTS.

ROUGH-ROUNDING AND CHANNELING -MACH|NE.

SPECIFICATION forming part of Letters Patent N 0. 590,597, datedSeptember 28, 1897.

Application filed October 2, 1896. Serial No. 607,698. (No model.)

To all whom it may concern.-

Be it known that I, ALBERT E. SMITH, a citizen of the United States,residing at W'orcester, in the county'of Worcester and State ofMassachusetts, have invented certain new and useful Improvements inRough-Round ing and Channeling Machines; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same.

My invention relates to rou gh-roundin g and channeling machines, andmore particularly to the channeling mechanism of such machines. In thesemachines as heretofore constructed the channeling-knife carrier andchanneling-knife were assembled in the machine in such manner that toplace the knife in position or to secure an adjustment of the same itwas necessary to release the block sustaining the roll or sleeve againstwhich the bottom of the sole rested and was guided during the operationof the machine, which took up much time and was otherwise objectionable.It was also necessary in the prior machine to employ a particular styleof channeling-knife, which was fashioned with a block-shank of steel,and aside from the comparatively great cost of produ cin g such knivesit has been found in practice that by reason of the grain of the steelin the downturned end of said knives running transversely of the samesaid knives were easily broken in use.

The present invention has for its object to simplify the construction ofthe channeling mechanism of these machines, to provide for the readyapplication of the channeling-knife and its easy adjustment, and tootherwise im-' prove the construction and operation of the machine.

To this end my invention consists of the devices and combination ofdevices which will be hereinafter described and claimed.

My invention is illustrated in the accompanying drawings, in whichFigure 1 shows a vertical longitudinal sectional view of arough-rounding andchanneling machine embodying my invention. Fig. 2shows a side elevation of myimproved channel-knife carrier. Fig. 3 is asectional View upon line 00 m, Fig. 4. Fig. 4: is a front View. Fig. 5is a sectional View upon line y y, Fig. 2.

Fig. 6 is a top plan View; and Fig. 7 is a sectional View upon line .2.2, Fig. 5, looking upwardly.

In the draw ings, A represents a portion of a supporting-standard, uponthe upper end of which is mounted a rough-rounding and channelingmachine B, the parts of which, where not otherwise specified, may be,and

preferably are, the same as those in the wellknown Goodyear roughrounding and channeling machine, and therefore will not be describedherein.

j 0 represents the channeling-knife carrier, which comprises a spindleor rod 0 and a table or plate 0', in which is fitted thechanneling-knife, as will be more clearly hereinafter set forth. Theknife-carrier O is supported by a bearing-block 0 within which fits thelower end of spindle c, and by a plate 0 upon which the rear edge of thetable or plate 0 rests.

As in the machine hereinbefore referred to, the block 0 and the plate 0are adapted to move upwardly and to carry with them the channeling-knifecarrier and knife.

Referring more particularly to Figs. 2 to 7,

it will be noted that the spindle c of the knifecarrier 0 has a head orenlargement 1) upon its upper end immediately below the plate 0, whichis cut away upon one side, as shown in Fig. 7.

The plate 0 is preferably of a triangular shape, as shown in Fig. 6, andupon one side 'of the apex is cut away, and upon the edge 12 formed bysaid cut is a bearing for one edge of the shank of the channeling-knife11 forming one member of the knifeclamp. The other member of theknife-clamp is formed by a shoulder 19 upon a block b fitted in thecut-away portion of thehead b, the block I)? being mounted upon a boltor screw b fitted to a threaded bearing in .the head I). The

channeling-knife Z7 in this instance may be simply a piece of steel inwhich the end is bent down and sharpened, and thus theicontinuity of thegrain of the steel preserved in the cutting end. Such a knife is muchcheaper to make than the block-knife of the machine above referred to,and, moreover, is not so liable to break. This knife is held in place byplacing its shank between the bearing 1) and the shoulder 17 and tightlydrawing the same toward each other by means of the screw or bolt b As inthe machine hereinbefore referred to, there is provided a rotary sleeveD, which is mounted upon the spindle c of the knife-carrier C and formsa bearing or rest for the shoe-sole during the operation of the machine.The sleeve D is supported upon the block 0 and instead of extending thesleeve upwardly immediately adjacent the under side of the plate ortable 0', as in the prior construction, thus covering the screw whichretains the channeling-knife and necessitating the removal of saidsleeve in order to remove or adjust said knife, the sleeve D is of alength to take under the head I), it being preferably formed with anupwardly-proj ected flan ge cl, which surrounds the lower portion ofsaid head.

E represents a guide which is preferably formed of a curved platesecured in position adjacent to the knife b and between the plate ortable 0 and the sleeve D bya screw 6. In order to relieve the point ofthe knife 13 from the breaking strain of the channel-flap cut by thesame, which passes beneath the knife, and to prevent the wedgin g of thefiap between the knife and the guide, a depression or groove is formedin the guide, as shown, which permits the free passage of the flapbetween the knife and guide. It will be noted that while I have shownthe groove e as formed in the guide E said guide E could be shorter oradjusted to bring its forward end immediately adjacent the cutting edgeof the knife Z1 thus leaving a space or clearance immediately below saidknife, or the groove could be formed in the block Zr.

In operation the knife-carrier O is mounted in the machine, as shown inFig. 1, and the knife I) inserted by placing its shank between theclamping-face I) and the shoulder b on the block Z) and securely clampedin position by turning the screw or bolt b and this can be done withoutreleasing the block 0 and dropping the sleeve D, as in previousconstructions, and the knife b can be readily and quickly adjusted byloosening the screw or bolt 17 which is always readily accessible to'theoperator. If desirable, an overlapping flange b may be provided upon theedge I) to take over the shank of the knife to prevent any upwardmovement thereof.

The machine has a suitable feed mechanism, and the sole of the shoe isplaced with its edge in position to be operated upon by therough-rounding knife, the bottom of the sole resting against the sleeveD in such position that as the shoe is fed past the point of thechanneling-knife it will cut a channel in the outer face thereofadjacent to the edge in a well-known manner.

' Having fully described my invention and its mode of operation, Iclaimas new and desire to protect by Letters Patent of the United States 1.Ina rough-rounding and channeling machine, a channel-knife carriercomprising a supporting-spindle, a rotary sole-rest mounted on thespindle, and a knife-clamp on said spindle above the rest,substantiallyas. described.

2. In a rough-rounding and channeling ma chine, a channel-knife carriercomprising a supporting-spindle, a rotary sole-rest mounted on thespindle, and a knife-clamp on said spindle above the rest comprisingfixed and movable clamping members and a screw for actuating saidmovable member,substantially as described.

In a rough-rounding and channeling machine, the combination with thesupportingspindle, a sole-rest mounted on said spindle, of a knife-clamp carried by said spindle above the sole-rest and guide for the sole onsaid knife-clamp, substantially as described.

In testimony whereof I afiix my signature in presence of two witnesses.

ALBERT E. SMITH. lVitnesses:

O. E. Snow, 0. L. BARKER.

